Ammunition.



W. COOPER.

AMMUNITION. APPLICATION FILED JAN. 15, 1914.

l,l03,740. PatentedJuly 14, 1914.

WITNESSES f INVENTOR if 'and eneral long range s outing.

bsult is e slowing up of the trimmen er WLLKEICQPEE, OF DENVER, COLOEDGC Annuseries.

.sppieetion filed January 15, wie.

To all'. echo/m. 'it m ey concern le it known that L-Wnmeia Coornmve citizen of the United States, and residingin the city ot Denver, in tlz'ecounty ht Beurer and State of Colorado,4 have invented or diefA covered new and useful improvements in Ammunition, of which the following is e speeiiicstion. f

My invention consists in new and useful improvements in projectiles and assembled ammunition for milite naval, sporting W ere e. solid rojectile, such spherical, cylindrical with either tlettened; truncated or conical head or of ang exterior hontonr, is propelled at hig.` speed from a gun barrel through either air or water, it meets with-` greet resistance due to the medium which Sinust displace continuously as vit -advances' sind the consequent friction. flfhis displetceinent` of the an' or Water results in the formation in the rear of the ying rojectileo e partial vacuum in air and o a tunnel in water of many timesv the diameter of the projectile -itsel9 which vacuum or tunnel exerts /ei' suction and further retards the project'le, The ref speed of travel and a loss in tlatness of t e trajectory. Also, such a projectile in passing from the air into water, unless the angle of its travel to the surf-ace closely a preaches a' right angle, will he deiecte and frequently ricochet along the surface l ot' the Water. These objectionable features are entirely overcome by my improved projectile.

My improved projectile is of hollow cylindrical. character, preferably having its bore beveled outwardly et its forward. end so as to easily/cleave the medium through which it is passing vand to readily cnt into and through the substance or material at 'which it is aimed. The remainder of the bore is preferably of constant diameter. The result is that there is no appreciable displacement of the medium through which the projectileV passes and no area of partial vacuum or tunnel is formed in the rear of the projectile. Thus the speed of the projectile is not retarded and its trajectory is tint and true. A projectile of my improved type when passing through the air and encountering;l .the surface of a body of Water, even at a very :icute angle, will enter the water readily without being turned from its line ot travel and will notlricoehet. also Speeiicetten'of *Letters Patent.

other recettes muy le, ini/r..

erial No. m.

, sembled or lined ammunition adapting the same to use in connection with and the proper discharge ot my improved projectile. ln the accompanying drawings, which are intended to he merely illustrativeci" the k n o n longitudinal section of an assembled sminumtion nnitintended for submarine shooting sectional View along the line "leliv in Fig. l, and Fig. 3 is e similar View to Fig. i showing my invention adapted to small arms shoot-ing.V i

The ollowmg is a detailed description of the drawings, reference being tirst'hadto Figs. l and 2. A is the usual metal shell or casing adapted to tit into the breach ci' the gun. l is e primer set in the head of seid inner end of the tube 2 is open and near said inner end the tube is provided with a pln'ralitycf ports or openings 3 cnt radially 1n its penimeter. t is e loading port in the head of casing and .fr-'is a screw plug hy means of which said loedin port may he tightly sealed.' The 'inner e'n of the tube 2 ts snuglyinto lthe central opening ci a metal dish 6 which i'n turn lits snugly in the bore of the casing' A. 7 is a second metal disk adapted to he tit-ted snugly in the here of casing-A and` provided with a central opening in which. is fitted snugly `the split head of a. funnel member 8. About. seid funnel member l build up e water-prooi' wedding of the proper diameter to be forced into the bore of the Casin v A ont o semicircular blanks 9 of suitnb e material which is subject to compression. The stem ot the funnel member 8 is provided with e plurality. of radially placed ports 10. '.lhe assembled disk 7, Waddin 9 and funnel inember 8'I are then forced into thebore of the casing A snugly against thc disk 6, the stem of the member 8 telesceping into the end of the tube 2 and the ports 3 and l0 registering. I next fill in powder or other explosive, a into the open end of the funnel member 8 until the tube 2 is filled. l then till the open end of the funnel. member S with suitable wedding or packing ll and seal the joints between the disk 7 and the member 8 and betweenv said disk und the `show new and useful improvements in ascasing and communicating with a tube 2` extending smelly of the casingn A.. The4 principlesI of my invention, Figure l is o' r u ,ce and embodying my invention; Fig. 2 is ill) bore of the casing A with paraflin or other material suitable to keep out the moisture.'

'Y 'projectile is new ready to be inserted into 2 ricamo Il is the prhjcctile oi' hollow cylindrical form and having the outer or front end of its central bore beveled, as shown to formA the plug o screwed tightly into p ace. The

the gun or arm. The taper of the covering l2 of the projectile permits the insertion ofthe latter into the riied portion of the gun without danger of catching or jamming. f

When the gun is tired, by means of the primer l, the powder 'a is first ignited, blow mg oil the wedding ll and` driving the water from the interior of the projectile and of the gun and also forming a tunnel in front/of the gun 'for the reception of the projectile as it leaves the former. At the same time through the ports 3 and ltlthe powder l) in the interior of the-easing A is ignited propelling the dislrs 6 and 7, the warming 9 and the projectile B out of the gun muzzle.` The wedding and disks, being relatively light, drop quickly ont of the way. The covering 12 of the projectile is prefen ably made Min two sections, one of the two parallel and diametrically opposed lines of separation being indicated at d in dotted line inl Fig. 1. Thus the covering readily separates Iand drops oil also as the projectile leaves the gun. It' the covering l2 were not readily removable from the projectile, so that it did not drop oli" therefrom immediately upon the projectileleaving the gun, its presence' on the bullet, on striking the water, or inpassing through theair in its torn condition, caused by the rifling, would distort the path of the bullet. Thus7 the advantage of my readily sejjnirahleI and re movable covering l2 is apparent, The projectile enters the tunnel in the watcr formed by the explosion of the powder c and passes ou in its flight. the annular edge ot" the projectile passes either outside of the projectile or in throughv its hore with but little displacement and friction, ano no tunnel in thekwater is left behind the projectile as 1t further advances.

Accordingly its flight is true and unirn-y pwled and its trajectoryilat. On encountering the object or substance at which it isl aimed, the sharp annular edge cuts through 'means 'for'expelling the projectile from the` and into the latter. leavingfa rourl'd lclean hole of great destructive character.

Referring now `to Fig.` il, l have here shown the projectile seated directly in the end of the cartridge A1 upon a metal dish- T he water encountered.hyy

13 and the usual wadding 14 which retains the powder In this case I do not require the elaborate precautions against the en` trance of' water noi' provisions for expelling the water from the bore of the projectile and the gun barrel, as' in submarine shooting. ln the ease of Fig. 8 I have shown the projectile, marked B as having its outer front wall beveled as well as its inner bore. This is to enable the projectile to extend into the rified portions of the gun barrel without catching thereon. The covering 12* of this projectile is likewise tapered to fit contour of the projectile.

In the use' of my invention in other than submarine shooting, very substantial advantages are obtained. The trajectory of the projectile is flat and its flight true and swift. Where it strikes water, it will enter the seme in the true line of its flight, and in ystrilring'the object aimed at, a, large hole is out through the same which will not close up in the rear of the projectile and therefore the stopping power of the hit is greatly increased. To compensate for the oss of Weight of the projectile, due to its hollow nature, I prolong the same to compensate 'for the removed materiell, but the hollow cylindrical form of the projectile holds the same true in its flight and the same will therefore carry much farther and truer than a solid cylinder of the same weight or exterior dimensions. Y

"What l desire to claim is:

l. In ammunition, a projectile of hollow cylindrical form havinga constant external diameter` and having the forward end of its internal bore beveled outward to meet the external perimeter and form a cutting edge, and a circumferential, soft covering for said projectile, formed in two, readilyseparable and removable sections, whereby, as the projectile leaves a gun, the covering separatesv and drops 0H.

2. An lassembled ammunition unit for submarine use comprising a casing having an inclosed end, a hollow cylindrical projectile insertedy in the open end of said' casing; an explosive' charge in said casing adapted to propel said projectile, and a seeond explosive charge adapted to expel the water Yfrom the bore of said projectile and from the gun;

An assembled ammunition unit for submarine use comprising a easing having a closed ond,.a hollow cylindrical projectile inserted in the open end of said casing, means lorexpelling `the water from the bore of said projectile and from the gun, and

` 4. An assembled ammunition unit for submarine use comprising a easing having a closed end and containmg an expelling explosive charge, a hollow cylindrical'projectile inserted in said casing, a water tight Signed at Pi',f=;b1z@gh 19a., this 14th my pakng between sad projectile and said exof January, 191.-

p o'sve barge an a tube in said Casin v p having a. pacid end adjacent to tha bore o WILLIAM Cool y( g" said projecte and containing an explosive Wriaus;

charge adapted to expel-w water xom said E. A. LAWxmxcu,v bore and 'om the gm, JQHN MGKELVI. 

